单选题
When communicating information, which of the following determine(s) the choice of method used?
(1) Comparative cost
(2) Degree of confidentiality
(3) Speed of delivery
For your choice:
A、
(1) only
B、
(3) only
C、
(1) and (2) only
D、
(1), (2) and (3)
【正确答案】
D
【答案解析】
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